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Test2-Suite-0.000153
River stage four • 938 direct dependents • 6574 total dependents
/ Test2::Workflow

NAME

Test2::Workflow - A test workflow is a way of structuring tests using composable units.

DESCRIPTION

A test workflow is a way of structuring tests using composable units. A well known example of a test workflow is RSPEC. RSPEC is implemented using Test2::Workflow in Test2::Tools::Spec along with several extensions.

IMPORTANT CONCEPTS

BUILD

Test2::Workflow::Build

A Build is used to compose tasks. Usually a build object is pushed to the stack before running code that adds tasks to the build. Once the build sub is complete the build is popped and returned. Usually a build is converted into a root task or task group.

RUNNER

Test2::Workflow::Runner

A runner takes the composed tasks and executes them in the proper order.

TASK

Test2::Workflow::Task

A task is a unit of work to accomplish. There are 2 main types of task.

ACTION

An action is the most simple unit used in composition. An action is essentially a name and a codeblock to run.

GROUP

A group is a task that is composed of other tasks.

EXPORTS

All exports are optional, you must request the ones you want.

$parsed = parse_args(args => \@args)
$parsed = parse_args(args => \@args, level => $L)
$parsed = parse_args(args => \@args, caller => [caller($L)])

This will parse a "typical" task builders arguments. The @args array MUST contain a name (plain scalar containing text) and also a single CODE reference. The @args array MAY also contain any quantity of line numbers or hashrefs. The resulting data structure will be a single hashref with all the provided hashrefs squashed together, and the 'name', 'code', 'lines' and 'frame' keys set from other arguments.

{
    # All hashrefs from @args get squashed together:
    %squashed_input_hashref_data,

    # @args must have exactly 1 plaintext scalar that is not a number, it
    # is considered the name:
    name => 'name from input args'

    # Integer values are treated as line numbers
    lines => [ 35, 44 ],

    # Exactly 1 coderef must be provided in @args:
    code => \&some_code,

    # 'frame' contains the 'caller' data. This may be passed in directly,
    # obtained from the 'level' parameter, or automatically deduced.
    frame => ['A::Package', 'a_file.pm', 42, ...],
}
$build = init_root($pkg, %args)

This will initialize (or return the existing) a build for the specified package. %args get passed into the Test2::Workflow::Build constructor. This uses the following defaults (which can be overridden using %args):

name    => $pkg,
flat    => 1,
iso     => 0,
async   => 0,
is_root => 1,

Note that %args is completely ignored if the package build has already been initialized.

$build = root_build($pkg)

This will return the root build for the specified package.

$build = current_build()

This will return the build currently at the top of the build stack (or undef).

$build = build($name, \%params, sub { ... })

This will push a new build object onto the build stash then run the provided codeblock. Once the codeblock has finished running the build will be popped off the stack and returned.

See parse_args() for details about argument processing.

SEE ALSO

Test2::Tools::Spec

Test2::Tools::Spec is an implementation of RSPEC using this library.

SOURCE

The source code repository for Test2-Workflow can be found at https://github.com/Test-More/Test2-Suite/.

MAINTAINERS

Chad Granum <exodist@cpan.org>

AUTHORS

Chad Granum <exodist@cpan.org>

COPYRIGHT

Copyright 2018 Chad Granum <exodist7@gmail.com>.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See http://dev.perl.org/licenses/